H70.8 — Other mastoiditis and related conditions
Is H70.8 billable?
No — H70.8 is a non-billable header code. H70.8 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 8 billable codes beneath H70.8.
Billable codes under this header
- H70.811Postauricular fistula, right ear
- H70.812Postauricular fistula, left ear
- H70.813Postauricular fistula, bilateral
- H70.819Postauricular fistula, unspecified ear
- H70.891Other mastoiditis and related conditions, right ear
- H70.892Other mastoiditis and related conditions, left ear
- H70.893Other mastoiditis and related conditions, bilateral
- H70.899Other mastoiditis and related conditions, unspecified ear
H70.8 at a glance
| Code | H70.8 |
|---|---|
| Description | Other mastoiditis and related conditions |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together
The conditions below can never be reported together with H70.8 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes2 — not included here — inherited from Chapter 8
The conditions below are not part of H70.8, but a patient may have both at the same time. When documentation supports it, H70.8 and the excluded code may both be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
What codes fall under H70.8? (2)
How long has H70.8 existed?
H70.8 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which codes are confused with H70.8?
ICD-10-CM declares these codes mutually exclusive with H70.8 — exactly one of each pair can be correct for a given encounter.